Algebra 1 - Functions - Is it a Function? & Evaluating Functions

Join me as I determine whether a table, mapping, or a graph is a function. I then guide you through evaluating functions in function notation form.

Thank you so much for watching!

My name is Rory Yakubov, and I am an Algebra and Geometry teacher from NJ.

Students: Check out my Quizlet account for more practice: YakubovMath

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[debe]

This is hands down one of the most useful videos I've seen on this subject. I'm a 9th-grade student and could not understand this at all but now I get it. Thank You Much

[awesomeness]

This is super helpful! I'm tutoring a family member this year and i haven't seen function in over 10 years lol he showed me his homework and I was beyond confused, but this really helped. Thank you!

[incredibleian]

Thank you, I am in Algebra 8 and I am learning this; you are a great teacher

[SorFN]

After watching 3 videos, this video was the only one that helped me understand. I didn’t even need to take down any notes!

[olivermullarkey]

Good review for my upcoming test, thank you :)

[CybrFxngs]

Thank you so much! I finally understand this now because when my teacher taught us this, i was scared to ask him questions😂

[jeyvinlima]

thanks my teacher sucks and we've got a test tomorrow and i didn't understand the topic well but now i do thanks!

[kwskll]

Thank you so much for this video!!!it helped me a lot

[Imjustanotherbird]

Omg thank you so much my teacher sucks at explaining this type of stuff!! 😩

[pynkbubblegumx]

Hi, I am amazed with how neat you write. (Red pen) Do you use a regular mouse or do you have special writing tool that works as a mouse? Thank you.

[HiKyber]

So what if in mapping theres less numbers in the y section than in x section meaning 2 numbers in the x section link to one number in the y section would it be a function?

[basill_]

where did you get the 5 from at 6:48 ?

[Gab-cnid]

why is your hand writing so good on your computer

[riptide]

ok honest question when is somebody supposed to use this in real life